Zend_Search_Lucene vs SOLR
I have recenlty stumbled into Zend Lucene port of Lucene project. I have a little bit experience with SOLR so I would like to know what is the difference between two of them especially from performance and installation side.
As much as I know SOLR requires Tomcat serverlet running in web hosting in order to work, what about Zend Lucene library?
I am also a bit confused what means "being implemented on the top of Lucene"?